Association Between Early Exposure to Famine and Risk of Renal Impairment in Adulthood: a Systematic Review and Meta-analysis

Overview

Journal Nutr Diabetes

Specialties Endocrinology
Nutritional Sciences

Date 2024 Oct 9

PMID 39384564

Authors

Mengting Huang

Xin Zeng

Zhuojun Dai

Yuqing Huang

Changfang Luo

Xiaozhen Tan

Zongzhe Jiang

Xia Fang

Yong Xu

Affiliations

Soon will be listed here.

Abstract

Malnutrition early in life increases the later-life risk of noncommunicable diseases, and previous epidemiologic studies have found a link between famine and renal impairment, but no consensus has been reached. This meta-analysis and systematic review were conducted to assess the correlation between early-life famine exposure and the risk of developing renal impairment. Search in Embase, Scopus, Web of Science, PubMed, and Cochrane using keywords that report the correlation between early famine exposure and renal function indicators. RevMan and Stata software were used for data analysis. This meta-analysis contained twelve observational studies. The findings demonstrated a link between prenatal famine exposure and a higher risk of developing chronic kidney disease (CKD) (odds ratio (OR) = 1.73, 95% confidence interval (CI): 1.25, 2.39), a decreased estimated glomerular filtration rate (eGFR) (mean difference (MD) = -10.05, 95% CI: -11.64, -8.46), and increased serum creatinine (Scr) (MD = 0.02, 95% CI: 0.01, 0.03) compared to unexposed individuals. Famine exposure in childhood was associated with decreased eGFR (MD = -9.43, 95% CI: -12.01, -6.84) and increased Scr (MD = 0.03, 95% CI: 0.01, 0.04), but not with CKD (OR = 0.980, 95% CI: 0.53, 1.81). Famine exposure in adolescence and adulthood was associated with decreased eGFR (MD = -20.73, 95% CI: -22.40, -19.06). Evidence certainty was deemed to be of low or extremely low quality. Famine exposure early in life could pose a greater risk of developing renal impairment in adulthood, but this outcome may be driven by uncontrolled age differences between famine-births and post-famine-births (unexposed).

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